annis.gui.CitationLinkGenerator.java Source code

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Here is the source code for annis.gui.CitationLinkGenerator.java

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/*
 * Copyright 2011 Corpuslinguistic working group Humboldt University Berlin.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package annis.gui;

import annis.gui.beans.CitationProvider;
import annis.gui.objects.ContextualizedQuery;
import annis.gui.objects.DisplayedResultQuery;
import annis.gui.objects.Query;
import annis.gui.objects.QueryGenerator;
import annis.libgui.Helper;
import com.vaadin.server.FontAwesome;
import com.vaadin.server.VaadinSession;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Notification;
import com.vaadin.ui.Table;
import com.vaadin.ui.UI;
import com.vaadin.ui.themes.BaseTheme;
import com.vaadin.ui.themes.ValoTheme;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author thomas
 */
public class CitationLinkGenerator implements Table.ColumnGenerator, Button.ClickListener {
    @Override
    public Object generateCell(Table source, Object itemId, Object columnId) {
        Button btLink = new Button();
        btLink.addStyleName(ValoTheme.BUTTON_BORDERLESS);
        btLink.setIcon(FontAwesome.SHARE_ALT);
        btLink.setDescription("Share query reference link");
        btLink.addClickListener(this);

        if (itemId instanceof DisplayedResultQuery) {
            btLink.addClickListener(new LinkClickListener((DisplayedResultQuery) itemId));
        } else if (itemId instanceof Query) {
            final CitationProvider citationProvider = new CitationProviderForQuery((Query) itemId);
            btLink.addClickListener(new LinkClickListener(citationProvider));
        } else if (itemId instanceof CitationProvider) {
            final CitationProvider citationProvider = (CitationProvider) itemId;
            btLink.addClickListener(new LinkClickListener(citationProvider));
        }

        return btLink;
    }

    @Override
    public void buttonClick(ClickEvent event) {
    }

    private static class CitationProviderForQuery implements CitationProvider {
        private final Query query;

        public CitationProviderForQuery(Query query) {
            this.query = query;
        }

        @Override
        public String getQuery() {
            if (query == null) {
                return null;
            }
            return query.getQuery();
        }

        @Override
        public Set<String> getCorpora() {
            if (query == null) {
                return new HashSet<>();
            }
            return query.getCorpora();
        }

        @Override
        public int getLeftContext() {
            if (query instanceof ContextualizedQuery) {
                return ((ContextualizedQuery) query).getLeftContext();
            }
            return 5;
        }

        @Override
        public int getRightContext() {
            if (query instanceof ContextualizedQuery) {
                return ((ContextualizedQuery) query).getRightContext();
            }
            return 5;
        }

    }

    private static class LinkClickListener implements Button.ClickListener, Serializable {

        private final CitationProvider citationProvider;
        private final DisplayedResultQuery query;

        public LinkClickListener(CitationProvider citationProvider) {
            this.citationProvider = citationProvider;
            this.query = null;
        }

        public LinkClickListener(DisplayedResultQuery query) {
            this.citationProvider = null;
            this.query = query;
        }

        @Override
        public void buttonClick(ClickEvent event) {

            if (query != null) {
                ShareQueryReferenceWindow c = new ShareQueryReferenceWindow(query,
                        !Helper.isKickstarter(VaadinSession.getCurrent()));
                UI.getCurrent().addWindow(c);
                c.center();
            } else if (citationProvider != null) {
                ShareQueryReferenceWindow c = new ShareQueryReferenceWindow(
                        QueryGenerator.displayed().query(citationProvider.getQuery())
                                .corpora(citationProvider.getCorpora()).left(citationProvider.getLeftContext())
                                .right(citationProvider.getRightContext()).offset(0).limit(10).build(),
                        !Helper.isKickstarter(VaadinSession.getCurrent()));
                UI.getCurrent().addWindow(c);
                c.center();
            } else {
                Notification.show("Internal error", "No valid citation link was found",
                        Notification.Type.WARNING_MESSAGE);
            }

        }
    }
}